Adding storage space wherever you can makes sense
It’s all very well to have so much internal volume, but if all of it is taken up with berths and shower units, then where does all the ‘stuff’ go? On the charter boat we hired, for example, the forward double had a water tank beneath it, a few shelves with nothing to secure gear above the bunk on one side, and one good sized hanging locker. Nothing like enough space for two people to liveaboard for two weeks in such a northern latitude, let alone full time. You inevitably end up with people living out of their sailing bags, a situation I cordially dislike.